<template>
	<div class="panel-tab__content">
		<el-form size="mini" label-width="80px" @submit.native.prevent>
			<el-form-item label="表单标识"><el-input v-model="formKey" clearable @change="updateElementFormKey" /></el-form-item>
			<el-form-item label="业务标识">
				<el-select v-model="businessKey" @change="updateElementBusinessKey">
					<el-option v-for="i in fieldList" :key="i.id" :value="i.id" :label="i.label" />
					<el-option label="无" value="" />
				</el-select>
			</el-form-item>
		</el-form>

		<!--字段列表-->
		<div class="element-property list-property">
			<el-divider>
				<i class="el-icon-coin"></i>
				表单字段
			</el-divider>
			<el-table :data="fieldList" size="mini" max-height="240" border fit>
				<el-table-column label="序号" type="index" width="50px" />
				<el-table-column label="字段名称" prop="label" min-width="80px" show-overflow-tooltip />
				<el-table-column label="字段类型" prop="type" min-width="80px" :formatter="row => fieldType[row.type] || row.type" show-overflow-tooltip />
				<el-table-column label="默认值" prop="defaultValue" min-width="80px" show-overflow-tooltip />
				<el-table-column label="操作" width="90px">
					<template slot-scope="{ row, $index }">
						<el-button size="mini" type="text" @click="openFieldForm(row, $index)">编辑</el-button>
						<el-divider direction="vertical" />
						<el-button size="mini" type="text" style="color: #ff4d4f" @click="removeField(row, $index)">移除</el-button>
					</template>
				</el-table-column>
			</el-table>
		</div>
		<div class="element-drawer__button"><el-button size="mini" type="primary" icon="el-icon-plus" @click="openFieldForm(null, -1)">添加字段</el-button></div>

		<!--字段配置侧边栏-->
		<el-drawer :visible.sync="fieldModelVisible" title="字段配置" :size="`${width}px`" append-to-body destroy-on-close>
			<el-form :model="formFieldForm" label-width="90px" size="mini" @submit.native.prevent>
				<el-form-item label="字段ID"><el-input v-model="formFieldForm.id" clearable /></el-form-item>
				<el-form-item label="类型">
					<el-select v-model="formFieldForm.typeType" placeholder="请选择字段类型" clearable @change="changeFieldTypeType">
						<el-option v-for="(value, key) of fieldType" :label="value" :value="key" :key="key" />
					</el-select>
				</el-form-item>
				<el-form-item label="类型名称" v-if="formFieldForm.typeType === 'custom'"><el-input v-model="formFieldForm.type" clearable /></el-form-item>
				<el-form-item label="名称"><el-input v-model="formFieldForm.label" clearable /></el-form-item>
				<el-form-item label="时间格式" v-if="formFieldForm.typeType === 'date'"><el-input v-model="formFieldForm.datePattern" clearable /></el-form-item>
				<el-form-item label="默认值"><el-input v-model="formFieldForm.defaultValue" clearable /></el-form-item>
			</el-form>

			<!-- 枚举值设置 -->
			<template v-if="formFieldForm.type === 'enum'">
				<el-divider key="enum-divider" />
				<p class="listener-filed__title" key="enum-title">
					<span>
						<i class="el-icon-menu"></i>
						枚举值列表：
					</span>
					<el-button size="mini" type="primary" @click="openFieldOptionForm(null, -1, 'enum')">添加枚举值</el-button>
				</p>
				<el-table :data="fieldEnumList" size="mini" key="enum-table" max-height="240" border fit>
					<el-table-column label="序号" width="50px" type="index" />
					<el-table-column label="枚举值编号" prop="id" min-width="100px" show-overflow-tooltip />
					<el-table-column label="枚举值名称" prop="name" min-width="100px" show-overflow-tooltip />
					<el-table-column label="操作" width="90px">
						<template slot-scope="{ row, $index }">
							<el-button size="mini" type="text" @click="openFieldOptionForm(row, $index, 'enum')">编辑</el-button>
							<el-divider direction="vertical" />
							<el-button size="mini" type="text" style="color: #ff4d4f" @click="removeFieldOptionItem(row, $index, 'enum')">移除</el-button>
						</template>
					</el-table-column>
				</el-table>
			</template>

			<!-- 校验规则 -->
			<el-divider key="validation-divider" />
			<p class="listener-filed__title" key="validation-title">
				<span>
					<i class="el-icon-menu"></i>
					约束条件列表：
				</span>
				<el-button size="mini" type="primary" @click="openFieldOptionForm(null, -1, 'constraint')">添加约束</el-button>
			</p>
			<el-table :data="fieldConstraintsList" size="mini" key="validation-table" max-height="240" border fit>
				<el-table-column label="序号" width="50px" type="index" />
				<el-table-column label="约束名称" prop="name" min-width="100px" show-overflow-tooltip />
				<el-table-column label="约束配置" prop="config" min-width="100px" show-overflow-tooltip />
				<el-table-column label="操作" width="90px">
					<template slot-scope="{ row, $index }">
						<el-button size="mini" type="text" @click="openFieldOptionForm(row, $index, 'constraint')">编辑</el-button>
						<el-divider direction="vertical" />
						<el-button size="mini" type="text" style="color: #ff4d4f" @click="removeFieldOptionItem(row, $index, 'constraint')">移除</el-button>
					</template>
				</el-table-column>
			</el-table>

			<!-- 表单属性 -->
			<el-divider key="property-divider" />
			<p class="listener-filed__title" key="property-title">
				<span>
					<i class="el-icon-menu"></i>
					字段属性列表：
				</span>
				<el-button size="mini" type="primary" @click="openFieldOptionForm(null, -1, 'property')">添加属性</el-button>
			</p>
			<el-table :data="fieldPropertiesList" size="mini" key="property-table" max-height="240" border fit>
				<el-table-column label="序号" width="50px" type="index" />
				<el-table-column label="属性编号" prop="id" min-width="100px" show-overflow-tooltip />
				<el-table-column label="属性值" prop="value" min-width="100px" show-overflow-tooltip />
				<el-table-column label="操作" width="90px">
					<template slot-scope="{ row, $index }">
						<el-button size="mini" type="text" @click="openFieldOptionForm(row, $index, 'property')">编辑</el-button>
						<el-divider direction="vertical" />
						<el-button size="mini" type="text" style="color: #ff4d4f" @click="removeFieldOptionItem(row, $index, 'property')">移除</el-button>
					</template>
				</el-table-column>
			</el-table>

			<!-- 底部按钮 -->
			<div class="element-drawer__button">
				<el-button size="mini">取 消</el-button>
				<el-button size="mini" type="primary" @click="saveField">保 存</el-button>
			</div>
		</el-drawer>

		<el-dialog :visible.sync="fieldOptionModelVisible" :title="optionModelTitle" width="600px" append-to-body destroy-on-close>
			<el-form :model="fieldOptionForm" size="mini" label-width="96px" @submit.native.prevent>
				<el-form-item label="编号/ID" v-if="fieldOptionType !== 'constraint'" key="option-id"><el-input v-model="fieldOptionForm.id" clearable /></el-form-item>
				<el-form-item label="名称" v-if="fieldOptionType !== 'property'" key="option-name"><el-input v-model="fieldOptionForm.name" clearable /></el-form-item>
				<el-form-item label="配置" v-if="fieldOptionType === 'constraint'" key="option-config"><el-input v-model="fieldOptionForm.config" clearable /></el-form-item>
				<el-form-item label="值" v-if="fieldOptionType === 'property'" key="option-value"><el-input v-model="fieldOptionForm.value" clearable /></el-form-item>
			</el-form>
			<template slot="footer">
				<el-button size="mini" @click="fieldOptionModelVisible = false">取 消</el-button>
				<el-button size="mini" type="primary" @click="saveFieldOption">确 定</el-button>
			</template>
		</el-dialog>
	</div>
</template>

<script>
import activiti from '../../process-designer/plugins/extension-moddle/activiti'
export default {
	name: 'ElementForm',
	props: {
		id: String,
		type: String
	},
	inject: {
		prefix: 'prefix',
		width: 'width'
	},
	data() {
		return {
			formKey: '',
			businessKey: '',
			optionModelTitle: '',
			fieldList: [],
			formFieldForm: {},
			fieldType: {
				long: '长整型',
				string: '字符串',
				boolean: '布尔类',
				date: '日期类',
				enum: '枚举类',
				custom: '自定义类型'
			},
			formFieldIndex: -1, // 编辑中的字段， -1 为新增
			formFieldOptionIndex: -1, // 编辑中的字段配置项， -1 为新增
			fieldModelVisible: false,
			fieldOptionModelVisible: false,
			fieldOptionForm: {}, // 当前激活的字段配置项数据
			fieldOptionType: '', // 当前激活的字段配置项弹窗 类型
			fieldEnumList: [], // 枚举值列表
			fieldConstraintsList: [], // 约束条件列表
			fieldPropertiesList: [] // 绑定属性列表
		}
	},
	watch: {
		id: {
			immediate: true,
			handler(val) {
				val && val.length && this.$nextTick(() => this.resetFormList())
			}
		}
	},
	mounted() {
		const that = this
		setTimeout(function() {
			if (that.bpmnELement.type == 'bpmn:UserTask') {
				console.log('that.bpmnELement incoming', that.bpmnELement.incoming)
				console.log('that.bpmnELement outgoing', that.bpmnELement.outgoing)
				
				that.fieldList = []
				that.formData.fields = []

				const x = that.bpmnELement.businessObject.id.replace('Event_', '')
				that.formFieldForm = {
					$type: 'activiti:FormProperty',
					id: 'FormProperty_' + x + '--__!!radio--__!!审批意见--__!!i--__!!同意--__--不同意',
					type: 'string'
				}
				that.saveField()
				setTimeout(function() {
					that.formFieldForm = {
						$type: 'activiti:FormProperty',
						id: 'FormProperty_' + x + 'remark--__!!textarea--__!!批注--__!!f__!!null',
						type: 'string'
					}
					that.saveField()
				}, 300)
			} else if (that.bpmnELement.type == 'bpmn:sequenceFlow') {
				// 连接线
				
			} 
		}, 1000)
	},
	methods: {
		resetFormList() {
			const that = this
			this.bpmnELement = window.bpmnInstances.bpmnElement
			// this.formKey = this.bpmnELement.businessObject.formKey;
			this.formKey = this.bpmnELement.businessObject.id
			this.bpmnELement.businessObject.formKey = this.formKey
			// 获取元素扩展属性 或者 创建扩展属性
			this.elExtensionElements = this.bpmnELement.businessObject.get('extensionElements') || window.bpmnInstances.moddle.create('bpmn:ExtensionElements', { values: [] })
			// 获取元素表单配置 或者 创建新的表单配置
			if ('activiti' !== this.prefix) {
				this.formData =
					this.elExtensionElements.values.filter(ex => ex.$type === `${this.prefix}:FormData`)?.[0] ||
					window.bpmnInstances.moddle.create(`${this.prefix}:FormData`, { fields: [] })
			} else {
				this.formData = this.elExtensionElements
				this.formData.fields = this.elExtensionElements.values
			}

			// 业务标识 businessKey， 绑定在 formData 中
			this.businessKey = this.formData.businessKey

			// 保留剩余扩展元素，便于后面更新该元素对应属性
			this.otherExtensions = this.elExtensionElements.values.filter(ex => ex.$type !== `${this.prefix}:FormData`)

			// 复制原始值，填充表格
			this.fieldList = JSON.parse(JSON.stringify(this.formData.fields || []))
			console.log(this.fieldList)

			// 更新元素扩展属性，避免后续报错
			this.updateElementExtensions()
		},
		updateElementFormKey() {
			window.bpmnInstances.modeling.updateProperties(this.bpmnELement, { formKey: this.formKey })
		},
		updateElementBusinessKey() {
			window.bpmnInstances.modeling.updateModdleProperties(this.bpmnELement, this.formData, { businessKey: this.businessKey })
		},
		// 根据类型调整字段type
		changeFieldTypeType(type) {
			this.$set(this.formFieldForm, 'type', type === 'custom' ? '' : type)
		},

		// 打开字段详情侧边栏
		openFieldForm(field, index) {
			this.formFieldIndex = index
			if (index !== -1) {
				const FieldObject = this.formData.fields[index]
				this.formFieldForm = JSON.parse(JSON.stringify(field))
				// 设置自定义类型
				this.$set(this.formFieldForm, 'typeType', !this.fieldType[field.type] ? 'custom' : field.type)
				// 初始化枚举值列表
				field.type === 'enum' && (this.fieldEnumList = JSON.parse(JSON.stringify(FieldObject?.values || [])))
				// 初始化约束条件列表
				this.fieldConstraintsList = JSON.parse(JSON.stringify(FieldObject?.validation?.constraints || []))
				// 初始化自定义属性列表
				this.fieldPropertiesList = JSON.parse(JSON.stringify(FieldObject?.properties?.values || []))
			} else {
				this.formFieldForm = {}
				// 初始化枚举值列表
				this.fieldEnumList = []
				// 初始化约束条件列表
				this.fieldConstraintsList = []
				// 初始化自定义属性列表
				this.fieldPropertiesList = []
			}
			this.fieldModelVisible = true
		},
		// 打开字段 某个 配置项 弹窗
		openFieldOptionForm(option, index, type) {
			this.fieldOptionModelVisible = true
			this.fieldOptionType = type
			this.formFieldOptionIndex = index
			if (type === 'property') {
				this.fieldOptionForm = option ? JSON.parse(JSON.stringify(option)) : {}
				return (this.optionModelTitle = '属性配置')
			}
			if (type === 'enum') {
				this.fieldOptionForm = option ? JSON.parse(JSON.stringify(option)) : {}
				return (this.optionModelTitle = '枚举值配置')
			}
			this.fieldOptionForm = option ? JSON.parse(JSON.stringify(option)) : {}
			return (this.optionModelTitle = '约束条件配置')
		},

		// 保存字段 某个 配置项
		saveFieldOption() {
			if (this.formFieldOptionIndex === -1) {
				if (this.fieldOptionType === 'property') {
					this.fieldPropertiesList.push(this.fieldOptionForm)
				}
				if (this.fieldOptionType === 'constraint') {
					this.fieldConstraintsList.push(this.fieldOptionForm)
				}
				if (this.fieldOptionType === 'enum') {
					this.fieldEnumList.push(this.fieldOptionForm)
				}
			} else {
				this.fieldOptionType === 'property' && this.fieldPropertiesList.splice(this.formFieldOptionIndex, 1, this.fieldOptionForm)
				this.fieldOptionType === 'constraint' && this.fieldConstraintsList.splice(this.formFieldOptionIndex, 1, this.fieldOptionForm)
				this.fieldOptionType === 'enum' && this.fieldEnumList.splice(this.formFieldOptionIndex, 1, this.fieldOptionForm)
			}
			this.fieldOptionModelVisible = false
			this.fieldOptionForm = {}
		},
		// 保存字段配置
		saveField() {
			const { id, type, label, defaultValue, datePattern } = this.formFieldForm
			const fieldName = this.prefix === 'activiti' ? `${this.prefix}:FormProperty` : `${this.prefix}:FormField`
			const Field = window.bpmnInstances.moddle.create(fieldName, { id, type, label })
			defaultValue && (Field.defaultValue = defaultValue)
			datePattern && (Field.datePattern = datePattern)
			// 构建属性
			if (this.fieldPropertiesList && this.fieldPropertiesList.length) {
				const fieldPropertyList = this.fieldPropertiesList.map(fp => {
					return window.bpmnInstances.moddle.create(`${this.prefix}:Property`, { id: fp.id, value: fp.value })
				})
				Field.properties = window.bpmnInstances.moddle.create(`${this.prefix}:Properties`, { values: fieldPropertyList })
			}
			// 构建校验规则
			if (this.fieldConstraintsList && this.fieldConstraintsList.length) {
				const fieldConstraintList = this.fieldConstraintsList.map(fc => {
					return window.bpmnInstances.moddle.create(`${this.prefix}:Constraint`, { name: fc.name, config: fc.config })
				})
				Field.validation = window.bpmnInstances.moddle.create(`${this.prefix}:Validation`, { constraints: fieldConstraintList })
			}
			// 构建枚举值
			if (this.fieldEnumList && this.fieldEnumList.length) {
				Field.values = this.fieldEnumList.map(fe => {
					return window.bpmnInstances.moddle.create(`${this.prefix}:Value`, { name: fe.name, id: fe.id })
				})
			}
			// 更新数组 与 表单配置实例
			if (this.formFieldIndex === -1) {
				this.fieldList.push(this.formFieldForm)
				this.formData.fields.push(Field)
			} else {
				this.fieldList.splice(this.formFieldIndex, 1, this.formFieldForm)
				this.formData.fields.splice(this.formFieldIndex, 1, Field)
			}
			this.updateElementExtensions()
			this.fieldModelVisible = false
		},

		// 移除某个 字段的 配置项
		removeFieldOptionItem(option, index, type) {
			if (type === 'property') {
				this.fieldPropertiesList.splice(index, 1)
				return
			}
			if (type === 'enum') {
				this.fieldEnumList.splice(index, 1)
				return
			}
			this.fieldConstraintsList.splice(index, 1)
		},
		// 移除 字段
		removeField(field, index) {
			this.fieldList.splice(index, 1)
			this.formData.fields.splice(index, 1)
			this.updateElementExtensions()
		},

		updateElementExtensions() {
			// 更新回扩展元素
			const newElExtensionElements = window.bpmnInstances.moddle.create('bpmn:ExtensionElements', {
				values: 'activiti' !== this.prefix ? this.otherExtensions.concat(this.formData) : this.formData.fields
			})
			// 更新到元素上
			window.bpmnInstances.modeling.updateProperties(this.bpmnELement, {
				extensionElements: newElExtensionElements
			})
		}
	}
}
</script>
